Home / 99,036.48-136,590.72-87,074.88

Finding the Fourth Proportional to 99,036.48, 136,590.72 and 87,074.88

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Solution

The fourth proportional to 99,036.48, 136,590.72 and 87,074.88 is: 120,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,036.48 : 136,590.72 = 87,074.88 : x
  2. Step 2: Convert to fraction form
    99,036.48/136,590.72 = 87,074.88/x
  3. Step 3: Cross multiply
    99,036.48x = 136,590.72 × 87,074.88
  4. Step 4: Simplify right side
    99,036.48x = 11,893,620,553.11
  5. Step 5: Solve for x
    x = 11,893,620,553.11/99,036.48
  6. Step 6: Final answer
    x = 120,093.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.